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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 $6,938 USD
HK$54,200 HKD
As of October 29, 2026
Save $5,936 USD (46%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $15,368 USD 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 October 29, 2026, with a 86% 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
Color
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: Oct 29
Current: $8,487 USD|Low: $7,387 USD|High: $12,960 USD|Avg: $9,565 USD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4$7,437 USD
Retailer 11$7,852 USD
Retailer 2$8,190 USD
Retailer 3$8,482 USD
Retailer 1$8,487 USD
Retailer 9$8,659 USD
Retailer 5$8,893 USD
Retailer 7$9,986 USD
Retailer 10$11,089 USD
Retailer 8$12,262 USD
Retailer 6$12,874 USD

28 data points across 11 retailers

23 retailers$6,938 USD to $12,874 USD

A
Cheapest Retailer
-
$6,938 USD
HK$54,200 HKD
A
Retailer 2
-
$7,437 USD
₹708,330 INR
View
A
Retailer 3
-
$7,503 USD
View
A
Retailer 4
-
$7,674 USD
SGD 10,370 SGD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$7,852 USD
View
A
Retailer 6
-
$8,190 USD
SGD 11,068 SGD
View
B+
Retailer 7
-
$8,439 USD
View
B+
Retailer 8
-
$8,440 USD
View
B+
Retailer 9
-
$8,482 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
$8,482 USD
View
Final sale: no returns
B+
Retailer 11
-
$8,487 USD
£6,683 GBP
View
B+
Retailer 12
-
$8,510 USD
View
B+
Retailer 13
-
$8,659 USD
A$13,321 AUD
View
B+
Retailer 14
-
$8,893 USD
£7,002 GBP
View
B+
Retailer 15
-
$9,189 USD
View
Price last confirmed 11 days ago
B+
Retailer 16
-
$9,330 USD
View
Price last confirmed 13 days ago
B+
Retailer 17
-
$9,392 USD
View
B+
Retailer 18
-
$9,986 USD
€9,510 EUR
View
B
Retailer 19
-
$10,602 USD
View
Price last confirmed 10 days ago
B+
Retailer 20
-
$11,089 USD
ZAR 179,145 ZAR
View
B
Retailer 21
-
$12,262 USD
£9,655 GBP
View
B
Retailer 22
-
$12,874 USD
£10,137 GBP
View
Most Expensive
B
NZ Jewellers
1e0e1df4-f9c0-4109-8f23-b540956e2e6e · Oct 17
$15,368 USD
View
Price last confirmed 11 days ago
22 more retailers have this diamond
Prices start from $6,938 USDSave up to $5,936 USD

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
$6,938 USD