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Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1549181187

Certificate GIA 1549181187

Diamond specifications and retailer prices

From $12,309 NZD
HK$54,200 HKD
As of November 1, 2026
Save $10,411 NZD (46%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $27,267 NZD at NZ Jewellers · As of October 17, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1549181187. Listed at 23 retailers as of November 1, 2026, with a 85% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1549181187
Dimensions7.28 × 7.23 × 4.57 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cavity, Needle, Pinpoint
Top View
7.28 mm7.23 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549181187
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.0%

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 1
Current: $13,138 NZD|Low: $13,107 NZD|High: $22,996 NZD|Avg: $17,083 NZD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 1$13,138 NZD
Retailer 11$13,932 NZD
Retailer 2$14,532 NZD
Retailer 3$15,050 NZD
Retailer 7$15,105 NZD
Retailer 10$15,363 NZD
Retailer 5$15,687 NZD
Retailer 6$17,736 NZD
Retailer 8$20,029 NZD
Retailer 9$21,756 NZD
Retailer 4$22,721 NZD

27 data points across 11 retailers

23 retailers$12,309 NZD to $22,721 NZD

A
Cheapest Retailer
-
$12,309 NZD
HK$54,200 HKD
A
Retailer 2
-
$13,138 NZD
₹705,183 INR
View
A
Retailer 3
-
$13,313 NZD
$7,503 USD
View
Retailer 4
-
$13,616 NZD
SGD 10,370 SGD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$13,932 NZD
$7,852 USD
View
A
Retailer 6
-
$14,532 NZD
SGD 11,068 SGD
View
B+
Retailer 7
-
$14,973 NZD
$8,439 USD
View
B+
Retailer 8
-
$14,975 NZD
$8,440 USD
View
Retailer 9
-
$15,050 NZD
$8,482 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$15,050 NZD
$8,482 USD
View
Final sale: no returns
B+
Retailer 11
-
$15,099 NZD
$8,510 USD
View
B+
Retailer 12
-
$15,105 NZD
£6,703 GBP
View
Retailer 13
-
$15,363 NZD
A$13,321 AUD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
$15,687 NZD
£6,962 GBP
View
Retailer 15
-
$16,304 NZD
$9,189 USD
View
Price last confirmed 14 days ago
Retailer 16
-
$16,554 NZD
$9,330 USD
View
Price last confirmed 17 days ago
B+
Retailer 17
-
$16,664 NZD
$9,392 USD
View
B+
Retailer 18
-
$17,736 NZD
€9,520 EUR
View
Retailer 19
-
$18,811 NZD
$10,602 USD
View
Price last confirmed 14 days ago
B+
Retailer 20
-
$20,029 NZD
ZAR 182,369 ZAR
View
B
Retailer 21
-
$21,756 NZD
£9,655 GBP
View
B
Retailer 22
-
$22,721 NZD
£10,083 GBP
View
Most Expensive
NZ Jewellers
1e0e1df4-f9c0-4109-8f23-b540956e2e6e · Oct 17
$27,267 NZD
$15,368 USD
View
Price last confirmed 15 days ago
22 more retailers have this diamond
Prices start from $12,309 NZDSave up to $10,411 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
$12,309 NZD