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Round|Lab Grown|IGI

1.61ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG780616135

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780616135

Diamond specifications and retailer prices

From $373 USD
As of October 29, 2026
Save $1,446 USD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,354 USD at Rare Carat · As of August 19, 2026
View at Rare Carat

About this 1.61ct lab-grown round diamond

This 1.61ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780616135 or 780616135. Listed at 21 retailers as of October 29, 2026, with a 388% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780616135
Dimensions7.43 × 7.48 × 4.63 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.43 mm7.48 mm1.61 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780616135
Side View
Table 59.0%Crown 35.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $834 USD|Low: $358 USD|High: $1,901 USD|Avg: $952 USD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 18$373 USD
Retailer 8$417 USD
Retailer 17$463 USD
Retailer 10$475 USD
Retailer 12$705 USD
Retailer 2$720 USD
Retailer 11$730 USD
Retailer 3$739 USD
Retailer 15$795 USD
Retailer 1$834 USD
Retailer 13$1,074 USD
Retailer 7$1,094 USD
Retailer 16$1,142 USD
Retailer 5$1,486 USD
Retailer 6$1,527 USD
Retailer 4$1,747 USD
Retailer 9$1,748 USD
Retailer 14$1,819 USD

36 data points across 18 retailers

21 retailers$373 USD to $1,819 USD

A
Cheapest Retailer
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$373 USD
A
Retailer 2
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$417 USD
View
Final sale: no returns
A
Retailer 3
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$463 USD
View
Retailer 4
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$475 USD
View
Price last confirmed 46 days ago
A
Retailer 5
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$705 USD
View
A
Retailer 6
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$720 USD
View
A
Retailer 7
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$730 USD
€695 EUR
View
A
Retailer 8
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$739 USD
View
A
Retailer 9
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$795 USD
ZAR 12,851 ZAR
View
A
Retailer 10
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$834 USD
£657 GBP
View
A
Retailer 11
-
$1,074 USD
A$1,653 AUD
View
B+
Retailer 12
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$1,094 USD
View
B+
Retailer 13
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$1,142 USD
View
Retailer 14
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$1,241 USD
View
Price last confirmed 46 days ago
B+
Retailer 15
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$1,486 USD
View
B+
Retailer 16
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$1,527 USD
View
B+
Retailer 17
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$1,615 USD
View
B+
Retailer 18
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$1,747 USD
View
B+
Retailer 19
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$1,748 USD
View
B+
Retailer 20
-
$1,819 USD
£1,432 GBP
View
Most Expensive
Rare Carat
E-144-69 · Aug 19
$2,354 USD
View
Price last confirmed 73 days ago
20 more retailers have this diamond
Prices start from $373 USDSave up to $1,446 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.61ct Round
$373 USD