CaratHunter
Plans
Round|Lab Grown|IGI

1.03ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG687537181

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687537181

Diamond specifications and retailer prices

From $260 NZD
As of November 5, 2026
Save $1,556 NZD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,816 NZD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.03ct lab-grown round diamond

This 1.03ct 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 LG687537181 or 687537181. Listed at 22 retailers as of November 5, 2026, with prices from $260 to $1,816, a $1,556 spread on the same certified stone. Reve Diamonds lists it at $1,816. 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

1.03
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687537181
Dimensions6.44 × 6.48 × 4.02 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
6.44 mm6.48 mm1.03 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687537181
Side View
Table 56.0%Crown 34.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.3%

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: Nov 5
Current: $548 NZD|Low: $258 NZD|High: $1,816 NZD|Avg: $740 NZD|+6.6%
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
November 6, 2026
Retailer 6$260 NZD
Retailer 10$290 NZD
Retailer 16$301 NZD
Retailer 2$322 NZD
Retailer 4$322 NZD
Retailer 9$509 NZD
Retailer 1$548 NZD
Retailer 3$596 NZD
Retailer 12$630 NZD
Retailer 13$720 NZD
Retailer 17$758 NZD
Retailer 8$795 NZD
Retailer 7$1,034 NZD
Retailer 14$1,092 NZD
Retailer 5$1,131 NZD
Retailer 15$1,423 NZD
Retailer 11$1,500 NZD
Reve Diamonds$1,816 NZD

45 data points across 18 retailers

22 retailers$260 NZD to $1,816 NZD

Retailer 1
-
$258 NZD
Price last confirmed 45 days ago
A
Retailer 2
-
$260 NZD
View
A
Retailer 3
-
$290 NZD
View
Final sale: no returns
A
Retailer 4
-
$301 NZD
View
Retailer 5
-
$315 NZD
View
Price last confirmed 45 days ago
A
Retailer 6
-
$322 NZD
View
Retailer 7
-
$322 NZD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$509 NZD
View
A
Retailer 9
-
$548 NZD
View
B+
Retailer 10
-
$596 NZD
View
B+
Retailer 11
-
$630 NZD
View
B+
Retailer 12
-
$720 NZD
View
B+
Retailer 13
-
$758 NZD
View
B+
Retailer 14
-
$795 NZD
View
B+
Retailer 15
-
$865 NZD
View
Retailer 16
-
$1,026 NZD
View
Price last confirmed 46 days ago
B
Retailer 17
-
$1,034 NZD
View
B
Retailer 18
-
$1,092 NZD
View
B
Retailer 19
-
$1,131 NZD
View
Retailer 20
-
$1,423 NZD
View
Price last confirmed 14 days ago
B
Retailer 21
-
$1,500 NZD
View
Most Expensive
B
Reve Diamonds
1533E1E36 · Nov 6
$1,816 NZD
$1,021 USD
View
21 more retailers have this diamond
Prices start from $260 NZDSave up to $1,556 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
1.03ct Round
$260 NZD