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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG836620979

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836620979

Diamond specifications and retailer prices

From $1,162 NZD
$655 USD
As of October 30, 2026
Save $5,279 NZD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,441 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620979 or 836620979. Listed at 19 retailers as of October 30, 2026, with prices from $1,162 to $6,441, a $5,279 spread on the same certified stone. Brilliant Earth lists it at $6,441. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620979
Dimensions7.07 × 7.83 × 4.56 mm
L/W Ratio1.11
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
7.07 mm7.83 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620979
Side View
Table 59.0%Crown 38.3°Girdle: Slightly ThickPavilion 36.9°Culet: NoneDepth 58.2%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $6,441 NZD|Low: $1,162 NZD|High: $8,854 NZD|Avg: $3,436 NZD|-27.3%
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
Retailer 18
November 1, 2026
Retailer 7$1,162 NZD
Retailer 17$1,263 NZD
Retailer 15$1,348 NZD
Retailer 4$1,467 NZD
Retailer 13$1,659 NZD
Retailer 18$2,005 NZD
Retailer 11$2,154 NZD
Retailer 12$2,156 NZD
Retailer 14$2,198 NZD
Retailer 5$2,454 NZD
Retailer 9$3,141 NZD
Retailer 16$3,788 NZD
Retailer 8$4,434 NZD
Retailer 3$4,650 NZD
Retailer 10$5,273 NZD
Retailer 6$5,607 NZD
Retailer 2$5,676 NZD
Brilliant Earth$6,441 NZD

34 data points across 18 retailers

19 retailers$1,162 NZD to $6,441 NZD

A
Cheapest Retailer
-
$1,162 NZD
$655 USD
A
Retailer 2
-
$1,263 NZD
$712 USD
View
A
Retailer 3
-
$1,348 NZD
$760 USD
View
Retailer 4
-
$1,395 NZD
$786 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$1,467 NZD
$827 USD
View
Final sale: no returns
A
Retailer 6
-
$1,659 NZD
$935 USD
View
A
Retailer 7
-
$2,005 NZD
$1,130 USD
View
B+
Retailer 8
-
$2,154 NZD
£956 GBP
View
B+
Retailer 9
-
$2,156 NZD
€1,157 EUR
View
B+
Retailer 10
-
$2,198 NZD
$1,239 USD
View
Retailer 11
-
$2,454 NZD
ZAR 22,344 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$3,141 NZD
$1,770 USD
View
B+
Retailer 13
-
$3,788 NZD
$2,135 USD
View
B+
Retailer 14
-
$4,434 NZD
$2,499 USD
View
B
Retailer 15
-
$4,650 NZD
$2,620 USD
View
B
Retailer 16
-
$5,273 NZD
SGD 4,016 SGD
View
B
Retailer 17
-
$5,607 NZD
$3,160 USD
View
B
Retailer 18
-
$5,676 NZD
£2,519 GBP
View
Most Expensive
B
Brilliant Earth
21590133A · Oct 31
$6,441 NZD
$3,630 USD
View
18 more retailers have this diamond
Prices start from $1,162 NZDSave up to $5,279 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
1.51ct Heart
$1,162 NZD