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Heart|Lab Grown|IGI

15.35ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG638499200

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG638499200

Diamond specifications and retailer prices

From $7,456 NZD
$4,195 USD
As of November 1, 2026
Save $27,521 NZD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $52,484 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 15.35ct lab-grown heart diamond

This 15.35ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG638499200 or 638499200. Listed at 16 retailers as of October 31, 2026, with a 369% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

15.35
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638499200
Dimensions17.69 × 15.51 × 9.62 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.69 mm15.51 mm15.35 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638499200
Side View
Table 59.0%Crown 35.9°Girdle: MED-THKPavilion 36.8°Culet: NoneDepth 54.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $52,484 NZD|Low: $4,107 NZD|High: $52,484 NZD|Avg: $12,192 NZD|+37.6%
Do Amore Diamonds
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
November 2, 2026
Retailer 8$6,430 NZD
Retailer 5$7,456 NZD
Retailer 16$7,628 NZD
Retailer 2$7,845 NZD
Retailer 10$7,994 NZD
Retailer 4$8,849 NZD
Retailer 12$8,931 NZD
Retailer 15$9,292 NZD
Retailer 13$11,515 NZD
Retailer 11$12,206 NZD
Retailer 9$12,708 NZD
Retailer 7$12,964 NZD
Retailer 14$22,842 NZD
Retailer 6$25,099 NZD
Retailer 3$34,976 NZD
Do Amore Diamonds$52,484 NZD

29 data points across 16 retailers

16 retailers$7,456 NZD to $34,976 NZD

Retailer 1
-
$6,430 NZD
$3,618 USD
Price last confirmed 20 days ago
B+
Retailer 2
-
$7,456 NZD
$4,195 USD
View
B+
Retailer 3
-
$7,628 NZD
$4,292 USD
View
B+
Retailer 4
-
$7,845 NZD
£3,475 GBP
View
B+
Retailer 5
-
$7,994 NZD
$4,498 USD
View
B+
Retailer 6
-
$8,849 NZD
$4,979 USD
View
B+
Retailer 7
-
$8,931 NZD
$5,025 USD
View
B+
Retailer 8
-
$9,292 NZD
$5,228 USD
View
B
Retailer 9
-
$11,515 NZD
$6,479 USD
View
B
Retailer 10
-
$12,206 NZD
$6,868 USD
View
B
Retailer 11
-
$12,708 NZD
£5,630 GBP
View
B+
Retailer 12
-
$12,964 NZD
$7,294 USD
View
B
Retailer 13
-
$22,842 NZD
$12,852 USD
View
B
Retailer 14
-
$25,099 NZD
$14,122 USD
View
B
Retailer 15
-
$34,976 NZD
$19,680 USD
View
Most Expensive
Do Amore Diamonds
27-2023659BA · Nov 2
$52,484 NZD
$29,530 USD
View
Price under review
15 more retailers have this diamond
Prices start from $7,456 NZDSave up to $27,521 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.

B+
15.35ct Heart
$7,456 NZD