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Round|Lab Grown|IGI

1.87ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG815677291

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815677291

Diamond specifications and retailer prices

From $830 NZD
$468 USD
As of October 30, 2026
Save $4,830 NZD (85%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $5,660 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.87ct lab-grown round diamond

This 1.87ct 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 LG815677291 or 815677291. Listed at 25 retailers as of October 30, 2026, with prices from $830 to $5,660, a $4,830 spread on the same certified stone. Brilliant Earth lists it at $5,660. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.87
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815677291
Dimensions7.96 × 7.92 × 4.82 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.96 mm7.92 mm1.87 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815677291
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.6%

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 30
Current: $5,660 NZD|Low: $591 NZD|High: $7,488 NZD|Avg: $2,569 NZD|-24.4%
Brilliant Earth
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
October 30, 2026
Retailer 5$830 NZD
Retailer 7$919 NZD
Retailer 4$1,295 NZD
Retailer 16$1,295 NZD
Retailer 13$1,468 NZD
Retailer 11$1,508 NZD
Retailer 15$1,579 NZD
Retailer 6$2,121 NZD
Retailer 12$2,139 NZD
Retailer 2$2,191 NZD
Retailer 3$2,557 NZD
Retailer 8$3,013 NZD
Retailer 9$3,350 NZD
Retailer 14$3,394 NZD
Retailer 10$3,439 NZD
Retailer 17$5,110 NZD
Brilliant Earth$5,660 NZD

34 data points across 17 retailers

25 retailers$830 NZD to $5,660 NZD

Retailer 1
-
$742 NZD
$418 USD
Price last confirmed 39 days ago
Retailer 2
-
$742 NZD
$418 USD
View
Price last confirmed 20 days ago
Retailer 3
-
$830 NZD
$468 USD
View
Price last confirmed 39 days ago
A
Retailer 4
-
$830 NZD
$468 USD
View
Final sale: no returns
Retailer 5
-
$907 NZD
$511 USD
View
Price last confirmed 49 days ago
Retailer 6
-
$907 NZD
$511 USD
View
Price last confirmed 36 days ago
Retailer 7
-
$919 NZD
$518 USD
View
Price last confirmed 18 days ago
Retailer 8
-
$919 NZD
$518 USD
View
Price last confirmed 28 days ago
A
Retailer 9
-
$1,295 NZD
$730 USD
View
A
Retailer 10
-
$1,295 NZD
$730 USD
View
A
Retailer 11
-
$1,468 NZD
€788 EUR
View
A
Retailer 12
-
$1,508 NZD
£669 GBP
View
A
Retailer 13
-
$1,579 NZD
ZAR 14,374 ZAR
View
A
Retailer 14
-
$2,121 NZD
$1,195 USD
View
B+
Retailer 15
-
$2,139 NZD
A$1,855 AUD
View
A
Retailer 16
-
$2,191 NZD
$1,235 USD
View
B+
Retailer 17
-
$2,557 NZD
$1,441 USD
View
Retailer 18
-
$2,952 NZD
$1,664 USD
View
Price last confirmed 23 days ago
Retailer 19
-
$2,952 NZD
$1,664 USD
View
Price last confirmed 34 days ago
B+
Retailer 20
-
$3,013 NZD
$1,698 USD
View
B+
Retailer 21
-
$3,350 NZD
$1,888 USD
View
B+
Retailer 22
-
$3,394 NZD
£1,506 GBP
View
B+
Retailer 23
-
$3,439 NZD
$1,938 USD
View
B
Retailer 24
-
$5,110 NZD
$2,880 USD
View
Most Expensive
B
Brilliant Earth
21017166A · Oct 30
$5,660 NZD
$3,190 USD
View
24 more retailers have this diamond
Prices start from $830 NZDSave up to $4,830 NZD

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
1.87ct Round
$830 NZD