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Round|Natural|GIA

1.50ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6531123603

Certificate GIA 6531123603

Diamond specifications and retailer prices

From $10,651 NZD
HK$46,900 HKD
As of October 31, 2026
Save $9,347 NZD (47%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $23,673 NZD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531123603. Listed at 18 retailers as of October 28, 2026, with a 88% 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

1.50
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6531123603
Dimensions7.38 × 7.33 × 4.51 mm
L/W Ratio1.01
Top View
7.38 mm7.33 mm1.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531123603
Side View
Table 61.0%Crown 34°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 61.3%

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: Oct 31
Current: $13,112 NZD|Low: $10,561 NZD|High: $20,089 NZD|Avg: $14,631 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 5$10,651 NZD
Retailer 4$11,265 NZD
Retailer 2$12,232 NZD
Retailer 11$12,702 NZD
Retailer 7$12,818 NZD
Retailer 6$13,004 NZD
Retailer 3$13,066 NZD
Retailer 1$13,112 NZD
Retailer 8$15,176 NZD
Retailer 10$19,753 NZD
Retailer 9$19,999 NZD

33 data points across 11 retailers

18 retailers$10,651 NZD to $19,999 NZD

A
Cheapest Retailer
-
$10,651 NZD
HK$46,900 HKD
A
Retailer 2
-
$11,265 NZD
₹604,655 INR
View
A
Retailer 3
-
$12,232 NZD
$6,894 USD
View
Retailer 4
-
$12,379 NZD
SGD 9,428 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$12,702 NZD
SGD 9,674 SGD
View
A
Retailer 6
-
$12,818 NZD
$7,224 USD
View
Final sale: no returns
A
Retailer 7
-
$13,004 NZD
£5,771 GBP
View
Retailer 8
-
$13,066 NZD
$7,364 USD
View
Price last confirmed 15 days ago
A
Retailer 9
-
$13,089 NZD
$7,377 USD
View
A
Retailer 10
-
$13,112 NZD
$7,390 USD
View
Retailer 11
-
$14,154 NZD
$7,977 USD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
$14,451 NZD
$8,145 USD
View
B+
Retailer 13
-
$15,176 NZD
€8,146 EUR
View
Retailer 14
-
$16,332 NZD
$9,205 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$19,753 NZD
£8,766 GBP
View
B+
Retailer 16
-
$19,999 NZD
£8,875 GBP
View
Retailer 17
-
$23,673 NZD
$13,342 USD
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
e9b6a624-7fd9-431a-ab4f-c6e3550ed700 · Sep 28
$23,673 NZD
$13,342 USD
View
Price last confirmed 33 days ago
17 more retailers have this diamond
Prices start from $10,651 NZDSave up to $9,347 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
1.50ct Round
$10,651 NZD