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Round|Lab Grown|IGI

1.10ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG685511510

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685511510

Diamond specifications and retailer prices

From $179 USD
As of October 29, 2026
Save $948 USD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,127 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.1ct lab-grown round diamond

This 1.1ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685511510 or 685511510. Listed at 21 retailers as of October 29, 2026, with prices from $179 to $1,127, a $948 spread on the same certified stone. Reve Diamonds lists it at $1,127. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.10
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685511510
Dimensions6.69 × 6.73 × 4.05 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
6.69 mm6.73 mm1.10 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685511510
Side View
Table 58.0%Crown 34.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.3%

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: $499 USD|Low: $141 USD|High: $1,127 USD|Avg: $499 USD
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
Reve Diamonds
October 31, 2026
Retailer 7$179 USD
Retailer 17$200 USD
Retailer 13$208 USD
Retailer 2$222 USD
Retailer 4$222 USD
Retailer 14$329 USD
Retailer 3$393 USD
Retailer 10$398 USD
Retailer 12$427 USD
Retailer 15$460 USD
Retailer 16$465 USD
Retailer 1$499 USD
Retailer 9$530 USD
Retailer 5$585 USD
Retailer 8$713 USD
Retailer 6$768 USD
Retailer 11$1,043 USD
Reve Diamonds$1,127 USD

44 data points across 18 retailers

21 retailers$179 USD to $1,127 USD

Retailer 1
-
$178 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$179 USD
View
A
Retailer 3
-
$200 USD
View
Final sale: no returns
A
Retailer 4
-
$208 USD
View
Retailer 5
-
$217 USD
View
Price last confirmed 39 days ago
A
Retailer 6
-
$222 USD
View
A
Retailer 7
-
$222 USD
View
A
Retailer 8
-
$329 USD
View
B+
Retailer 9
-
$393 USD
View
B+
Retailer 10
-
$398 USD
£314 GBP
View
B+
Retailer 11
-
$427 USD
€407 EUR
View
Retailer 12
-
$460 USD
View
Price last confirmed 13 days ago
B+
Retailer 13
-
$465 USD
View
B+
Retailer 14
-
$499 USD
A$768 AUD
View
B+
Retailer 15
-
$530 USD
View
B
Retailer 16
-
$585 USD
View
Retailer 17
-
$708 USD
View
Price last confirmed 40 days ago
B
Retailer 18
-
$713 USD
View
B
Retailer 19
-
$768 USD
View
B
Retailer 20
-
$1,043 USD
£821 GBP
View
Most Expensive
B
Reve Diamonds
E81DB53FA · Oct 30
$1,127 USD
View
20 more retailers have this diamond
Prices start from $179 USDSave up to $948 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
1.10ct Round
$179 USD